Is it possible to still be pregnant even though the tests have come out negative?

I went to the doctor back in May and I never did see the doctor, just the RN. Anyway, I was supposed to have another appt to find out what is wrong if I am not pregnant. The RN said not a problem. Anyhow, they called to tell me that the test came back negative and that was that. Anyhow, I have another appt, with a different doctor, this coming wednesday. I am worried that I am pregnant, I would hate to have harmed my baby in anyway. I still get nauseated and something actually get sick for no reason, and my hips are bigger and my stomach is getting big and it hurts when my bf lays his leg(s) across my abdomen.

Yes it is possible. My daughter took three tests before getting the positive results on my first grandchild. I remember when it finally showed positive. We were dancing in the streets! Good luck to you.... let us know.